Aviston, IL 62216 Frost Dates
When can you plant in Aviston, IL?
Typically, the last spring freeze lands around 04/06, roughly 221 days out. The first fall frost typically arrives around 10/29, about 204 frost-free days later.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Aviston, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Aviston before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/06 is the middle of 30 years of NOAA records, not a promise. Plant by 03/23 and you're betting against frost in roughly 9 years out of 10. 04/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Aviston compares
At roughly 204 frost-free days, Aviston places 16,621 of 40,283 ZIP codes in this dataset. Within IL, it ranks 129 of 1,548.
Learn more
local microclimates covers what one yard in Aviston can differ from the 62216 normal. zone vs. frost date covers why Zone 6b and Aviston's frost date answer different questions.